a. If a support or resistance level is broken, it signals that the relationship between supply and demand has changed.
b. A resistance breakout signals that demand (bulls) has gained the upper hand and a support break signals that supply (bears) has won the battle.
c. If a security is approaching an important support level , it can serve as an alert to be extra vigilant in looking for signs of increased buying pressure and a potential reversal. If a security is approaching a resistance level , it can act as an alert to look for signs of increased selling pressure and potential reversal.

We all know Points a and b well. But Point c is where one should focus on